154276 (2002 SY50)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6889134523 ± 3.42e-09
Semi-major axis (a)1.7052788111 AU ± 2.85e-09
Inclination (i)8.74051555° ± 1.84e-06
Long. of Asc. Node (Ω)34.01625558° ± 3.34e-06
Arg. of Perihelion (ω)99.70762330° ± 3.15e-06
Mean Anomaly (M)105.16927769° ± 9.00e-07
Mean Motion (n)0.4426079216°/day ± 1.11e-09
Perihelion dist (q)0.53048930 AU ± 5.90e-09
Aphelion dist (Q)2.88006832 AU ± 7.56e-09
Orbital Period2.22686092 yr ± 5.58e-09
Physical Parameters
H (abs. magnitude)17.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.291″
Uncertainty0
Orbit TypeApollo
MOID0.003664 AU
Observations Used1098
Radar Obs Used7
Oppositions1
Arc Total2002-2025
First Observation Used2002-08-25
Last Observation Used2025-06-29
Observations (1204)
Date Type RA Dec Mag Band Observatory
2024-09-23 08:56:32 C 22 26 16.995 -22 09 02.75 X F51
2024-09-29 07:23:56 C 22 16 49.657 -22 31 01.81 X F51
2024-09-29 07:56:58 C 22 16 47.511 -22 31 05.58 X F51
2024-09-29 08:13:31 C 22 16 46.439 -22 31 07.53 X F51
2024-10-05 07:25:28 C 22 08 21.053 -22 42 03.09 X F51
2024-10-05 07:42:24 C 22 08 20.099 -22 42 03.79 X F51
2024-10-05 07:59:19 C 22 08 19.151 -22 42 04.39 X F51
2024-10-05 08:16:15 C 22 08 18.191 -22 42 05.13 X F51
2025-05-15 18:43:31 C 07 53 41.678 -22 09 50.98 V M22
2025-05-15 18:50:52 C 07 53 53.602 -22 11 35.16 V M22
2025-05-15 19:18:35 C 07 54 38.726 -22 18 08.17 V M22
2025-05-16 18:22:44 C 08 33 43.606 -27 26 21.55 V M22
2025-05-16 18:26:43 C 08 33 50.386 -27 27 09.72 V M22
2025-05-16 18:34:11 C 08 34 03.125 -27 28 39.65 V M22
2025-05-16 18:50:09 C 08 34 30.317 -27 31 51.46 V M22
2025-05-20 12:45:06 B 10 55 28.690 -37 35 05.10 X P14
2025-05-20 13:15:12 B 10 56 05.662 -37 36 07.88 X P14
2025-05-20 13:45:13 B 10 56 42.454 -37 37 08.80 X P14
2025-05-22 01:53:35 C 11 36 34.903 -38 19 21.36 V W68
2025-05-22 01:54:14 C 11 36 35.522 -38 19 21.47 V W68
2025-05-22 02:07:03 C 11 36 47.587 -38 19 25.43 V W68
2025-05-22 02:26:35 C 11 37 05.957 -38 19 31.48 V W68
2025-05-22 02:27:53 C 11 37 07.166 -38 19 31.44 V W68
2025-05-22 02:42:17 C 11 37 20.719 -38 19 35.69 V W68
2025-05-22 02:46:53 C 11 37 25.034 -38 19 36.91 V W68
2025-05-23 16:56:53 C 12 09 26.225 -38 15 39.96 V M22
2025-05-23 17:01:26 C 12 09 29.443 -38 15 38.23 V M22
2025-05-23 17:05:21 C 12 09 32.203 -38 15 36.58 V M22
2025-05-23 17:15:07 C 12 09 39.074 -38 15 32.69 V M22
2025-05-24 08:23:20 B 12 20 02.21 -38 07 07.8 q Q73
2025-05-24 08:28:31 B 12 20 05.53 -38 07 04.8 q Q73
2025-05-24 08:33:41 B 12 20 08.68 -38 07 01.9 q Q73
2025-05-24 19:59:54 C 12 27 13.526 -37 59 15.54 V M22
2025-05-24 20:04:32 C 12 27 16.222 -37 59 12.05 V M22
2025-05-24 20:13:41 C 12 27 21.533 -37 59 04.96 V M22
2025-05-24 20:29:36 C 12 27 30.761 -37 58 52.50 V M22
2025-05-24 23:44:03 B 12 29 28.21 -37 57 00.9 q X33
2025-05-24 23:46:36 B 12 29 29.70 -37 56 59.3 q X33
2025-05-24 23:49:08 B 12 29 31.05 -37 56 57.3 q X33
2025-05-25 23:00:34 B 12 42 03.37 -37 38 13.9 X X76
2025-05-25 23:06:57 B 12 42 06.44 -37 38 09.0 X X76
2025-05-25 23:12:56 B 12 42 09.29 -37 38 03.8 X X76
2025-05-26 06:07:51 C 12 45 27.283 -37 31 27.66 V W68
2025-05-26 06:13:14 C 12 45 29.834 -37 31 22.40 V W68
2025-05-26 06:36:28 C 12 45 40.826 -37 30 59.44 V W68
2025-05-26 06:45:53 C 12 45 45.290 -37 30 50.15 V W68
2025-05-27 20:29:19 C 13 01 49.044 -36 58 02.86 V M22
2025-05-27 20:33:27 C 13 01 50.542 -36 57 59.11 V M22
2025-05-27 20:57:09 C 13 01 59.165 -36 57 37.19 V M22
2025-05-28 06:31:53 C 13 05 32.355 -36 49 50.93 X F51
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2002-10-28 07:00:00 612496.5 8 Hz 8560 -14 -14
2002-10-30 01:10:00 470127.3 10 Hz 8560 -14 -14
2002-10-30 02:30:00 91610928.2 5 us 8560 -14 -14
2002-10-31 04:30:00 87371438.4 5 us 8560 -14 -14
2002-11-02 02:20:00 83582561.3 5 us 8560 -14 -14
2002-11-04 04:00:00 85265697 5 us 8560 -14 -14
2002-11-05 02:00:00 87864822.8 5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)